US20040046364A1 - Safety lock for stroller - Google Patents
Safety lock for stroller Download PDFInfo
- Publication number
- US20040046364A1 US20040046364A1 US10/457,227 US45722703A US2004046364A1 US 20040046364 A1 US20040046364 A1 US 20040046364A1 US 45722703 A US45722703 A US 45722703A US 2004046364 A1 US2004046364 A1 US 2004046364A1
- Authority
- US
- United States
- Prior art keywords
- stroller
- slot
- projection
- safety lock
- critical point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
- B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
- B62B2205/20—Catches; Locking or releasing an articulation
Definitions
- the present invention relates generally to a secondary safety lock for a stroller, and more particularly to a complementary safety device for preventing the stroller from being carelessly collapsed.
- (1) light weight Lighter weight of the structure is in favor of the user to easily operate the stroller. Particularly, women, for example mothers, usually desire the stroller to be as light as possible.
- the present invention relates to a safety lock for a stroller that can substantially obviate one or more of the problems due to the limitations and disadvantages of the related arts.
- One object of the present invention is the provision of a safety lock for a stroller which can prevent the stroller from being accidentally collapsed.
- Another object of the present invention is the provision of a safety lock for a stroller which can achieve the effect of safety protection under the operation mode of not affecting other part.
- a further object of the present invention is to provide a safety lock for a stroller which can reach the goal of safety but does not incur any inconvenience of operation.
- An yet object of the present invention is to provide a safety lock for a stroller which takes safety, convenience, cost and light weight into consideration at same time.
- a safety lock for a stroller comprises a lock body secured on a first member of the stroller, having a slot curved at a critical point; a sleeve member movably bushed around a second member of the stroller, having a projection.
- the sleeve member further comprises a lobe protruding out of a surface of the sleeve member.
- the slot further comprises an angle section at one side of the critical point.
- the slot further comprises an inclined section at the other side of the critical point.
- FIG. 1 is an assembled schematic view illustrating the safety lock is installed at a foldable stroller in a state of being stretched according to the present invention
- FIG. 2 is an assembled schematic view of the safety lock of the stroller according to the present invention illustrating the safety lock in a state of being folded;
- FIG. 3 is a partially enlarged perspective view of the safety lock according to the present invention illustrating the safety lock in a state of being stretched;
- FIG. 4 is a partially enlarged perspective view of the safety lock according to the present invention illustrating the safety lock in a state of being folded;
- FIG. 5 is a partially enlarged perspective view of the safety lock according to the present invention illustrating the lock body
- FIG. 6 is a partially enlarged perspective view of the safety lock according to the present invention illustrating the sleeve member.
- a stroller 10 shown in FIG. 1 is a common collapsible stroller whose safety lock 100 is respectively fixed at a first member 14 and a second member 12 of the stroller 10 .
- the safety lock 100 includes a lock body 102 secured at the first member 14 and a sleeve member 104 movably bushed around the second member 12 .
- a projection 114 (shown in FIG. 6, not shown in FIG. 3 and FIG. 4) equipped at the sleeve member 104 slides along a slot 106 provided in the lock body 102 and opened at a surface of the lock body 102 .
- the slot 106 extends substantially like an arc, but respectively has an angle section 112 perpendicular to the arc and an inclined section 110 at both ends.
- the projection 114 is engaged at the top end of the angle section 112 .
- the projection 114 when the stroller 10 is in a state of being completely folded, the projection 114 is engaged at one end of the inclined section 110 .
- the projection 114 slides from the top end of the angle section 112 to one end of the inclined section 110 .
- the lock body 102 is provided with a slot 106 which includes an angle section 112 and an inclined section 110 .
- the width and the depth of the slot 106 are designed corresponding to the diameter and the length of the projection 114 so as to permit the projection 114 smoothly sliding along the whole range of the slot 106 .
- the holes 120 are provided for the rivets or the screws to penetrate and to secure the lock body 102 at the first member 14 of the stroller 10 .
- the number of the rivets or the screws is preferably two and also can be adequately increased.
- the sleeve member 104 is provided with a lobe 108 , a projection 114 and an aperture 122 .
- a connecting means such as an elastic fastener penetrating the aperture 122 , the sleeve member 104 is movably fixed at a proper position of the second member 12 of the stroller 10 , which is near the crossing of the second member 12 and the first member 14 .
- the projection 114 at first slides from the top end of the angle section 112 to the critical point, the crossing of the angle section 112 and the arc of the slot 106 . At this time, synchronizing with the collapsing action, the projection 114 slides along the longitudinal direction of the slot 106 to the inclined section 110 , then slides into the inclined section 110 , and finally reaches the end of the inclined section 110 when the operation of collapsing the stroller 10 is accomplished. It can be understood through the above operation processes that the collapsing actions provide the projection 114 with a clockwise force.
- the projection 114 slides from the end of the inclined section 110 and along the longitudinal direction of the slot 106 .
- the projection 114 is exerted a restoration force resulting from the sleeve member 104 and then slides into the end of the angle section 112 to finish the locking actions.
Abstract
A safety lock for a stroller comprises a lock body secured on a first member of the stroller and having a slot perpendicularly curved at a critical point and a sleeve member movably sliding along a second member of the stroller. The lock body has a slot for receiving a projection extending out of the sleeve member and permits the projection sliding along the slot. The slot has a substantially perpendicular angle section at one side so as to fix the relative position between the first member and the second member.
Description
- The present invention relates generally to a secondary safety lock for a stroller, and more particularly to a complementary safety device for preventing the stroller from being carelessly collapsed.
- Based on the needs of the user, the design of the stroller is generally focused on the following:
- (1) light weight: Lighter weight of the structure is in favor of the user to easily operate the stroller. Particularly, women, for example mothers, usually desire the stroller to be as light as possible.
- (2) convenience of operation: During using the stroller, it is often necessary to perform various adjustments such as stretching, folding, adjusting the inclination of the backrest, and carrying out other functions. Simple and easy operations allow the user to accomplish the adjustments to the desired state during short time. Usually, adults must hold the baby in their arm and adjust the stroller simultaneously in many situations. Therefore, it becomes a favorite of user that the stroller with easy and labor-saving operation.
- (3) consideration of cost: For most of the users, in spite of high quality products usually obtaining high assessment, the price, however, is always an important factor of buying the stroller or not. Especially, most of the users of the strollers are young couples who have the heavily economic load so that the structure and material with low cost also become an important factor of designing the stroller.
- (4) complete safety protection: Although all of the aforementioned points are the main factors which the consumers will take into consideration while selecting and making purchase, however, the final and the most important factor of design is the ability of protection from the potential dangers. The stroller is used to carry the baby from 0 to 3.5 years old so that the stability, the ability of avoiding mistakenly operating, and the ability of protection during the using processes are all very important. This important factor is not only paid much attention to by the consumers, but also endeavored to by the producers so as to avoid all potential safety problems. The authorities concerned of the merchandise safety in all countries have definite requirements in the respect of this factor.
- It is apparent that all kinds of the strollers are developed through the processes of design taken the above-mentioned factors into consideration. However, in fact, it is difficult to reach the best conditions in all above aspects in one product. For example, the simple and convenient structure of collapsing perhaps has many problems in safety; the stroller with multifunction must be heavy weight; the stroller with light material and easy to operate perhaps needs high cost in manufacture and design. Accordingly, what the producer can pursue to is only to adjust the direction of design according to the particular needs of a certain group of consumers and endeavors to achieve a reasonable balance which can be accepted by the consumers.
- Taking the stroller collapsed with one hand into consideration, because the operation of collapsing and stretching the stroller can be accomplished by only one hand, the stroller prevails very much. However, in some situations, due to easily being collapsed, there exists a potential risk. Especially, when the infant is still in the stroller, it happens that the stroller is carelessly collapsed. Once this accident happens, the infant maybe be squeezed by the structure of the stroller, or drop out of the stroller, or moreover have the risk of life.
- Consequently, it is necessary to design a safety protection structure that can effectively upgrade the safety of the stroller under the condition of not affecting the above factors of design.
- Accordingly, the present invention relates to a safety lock for a stroller that can substantially obviate one or more of the problems due to the limitations and disadvantages of the related arts. One object of the present invention is the provision of a safety lock for a stroller which can prevent the stroller from being accidentally collapsed.
- Another object of the present invention is the provision of a safety lock for a stroller which can achieve the effect of safety protection under the operation mode of not affecting other part.
- A further object of the present invention is to provide a safety lock for a stroller which can reach the goal of safety but does not incur any inconvenience of operation.
- An yet object of the present invention is to provide a safety lock for a stroller which takes safety, convenience, cost and light weight into consideration at same time.
- Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
- To achieve these and other advantages and according to the purpose of the present invention, as embodied and broadly described, a safety lock for a stroller comprises a lock body secured on a first member of the stroller, having a slot curved at a critical point; a sleeve member movably bushed around a second member of the stroller, having a projection. When the projection slides in the slot and when the projection is at one side of the critical point, the stroller is in a state of being stretched. On the other hand, when the projection is at the other side of the critical point, the stroller is in a state of being collapsed.
- It is preferred that the sleeve member further comprises a lobe protruding out of a surface of the sleeve member.
- Preferably, the slot further comprises an angle section at one side of the critical point.
- Alternatively, the slot further comprises an inclined section at the other side of the critical point.
- It is to be understood that both the forgoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
- The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description serve to explain the principle of the invention. In the drawings:
- FIG. 1 is an assembled schematic view illustrating the safety lock is installed at a foldable stroller in a state of being stretched according to the present invention;
- FIG. 2 is an assembled schematic view of the safety lock of the stroller according to the present invention illustrating the safety lock in a state of being folded;
- FIG. 3 is a partially enlarged perspective view of the safety lock according to the present invention illustrating the safety lock in a state of being stretched;
- FIG. 4 is a partially enlarged perspective view of the safety lock according to the present invention illustrating the safety lock in a state of being folded;
- FIG. 5 is a partially enlarged perspective view of the safety lock according to the present invention illustrating the lock body; and
- FIG. 6 is a partially enlarged perspective view of the safety lock according to the present invention illustrating the sleeve member.
- A
stroller 10 shown in FIG. 1 is a common collapsible stroller whosesafety lock 100 is respectively fixed at afirst member 14 and asecond member 12 of thestroller 10. Thesafety lock 100 includes alock body 102 secured at thefirst member 14 and asleeve member 104 movably bushed around thesecond member 12. - As shown in FIG. 1 and FIG. 2, the relative position between the
sleeve member 104 and thelock body 102 is obviously different in response to the change of the stretched state and the collapsed state of thestroller 10. The details will be referred to the drawings and illustrated in the following. - As shown in FIG. 3 and FIG. 4, a projection114 (shown in FIG. 6, not shown in FIG. 3 and FIG. 4) equipped at the
sleeve member 104 slides along aslot 106 provided in thelock body 102 and opened at a surface of thelock body 102. Theslot 106 extends substantially like an arc, but respectively has anangle section 112 perpendicular to the arc and aninclined section 110 at both ends. As shown in FIG. 3, when thestroller 10 is in a state of being stretched, theprojection 114 is engaged at the top end of theangle section 112. As shown in FIG. 4, when thestroller 10 is in a state of being completely folded, theprojection 114 is engaged at one end of theinclined section 110. In other word, during the process of thestroller 10 switching from the state of being stretched to the state of being folded, theprojection 114 slides from the top end of theangle section 112 to one end of theinclined section 110. - As shown in FIG. 5, the
lock body 102 is provided with aslot 106 which includes anangle section 112 and aninclined section 110. The width and the depth of theslot 106 are designed corresponding to the diameter and the length of theprojection 114 so as to permit theprojection 114 smoothly sliding along the whole range of theslot 106. - The
holes 120 are provided for the rivets or the screws to penetrate and to secure thelock body 102 at thefirst member 14 of thestroller 10. For the stability of the entire structure, the number of the rivets or the screws is preferably two and also can be adequately increased. - As shown in FIG. 6, the
sleeve member 104 is provided with alobe 108, aprojection 114 and anaperture 122. By means of a connecting means such as an elastic fastener penetrating theaperture 122, thesleeve member 104 is movably fixed at a proper position of thesecond member 12 of thestroller 10, which is near the crossing of thesecond member 12 and thefirst member 14. As mentioned above, in the state of thestroller 10 being stretched, when the user presses thelobe 108 and pushes thesleeve member 104 downward, theprojection 114 at first slides from the top end of theangle section 112 to the critical point, the crossing of theangle section 112 and the arc of theslot 106. At this time, synchronizing with the collapsing action, theprojection 114 slides along the longitudinal direction of theslot 106 to theinclined section 110, then slides into theinclined section 110, and finally reaches the end of theinclined section 110 when the operation of collapsing thestroller 10 is accomplished. It can be understood through the above operation processes that the collapsing actions provide theprojection 114 with a clockwise force. - Therefore, in the condition that the
sleeve member 104 is not pushed downward, even if it is desired to collapse the stroller, however, theprojection 114 will be restricted in the extending direction of theangle section 112 and cannot slide along the arc of theslot 106. Consequently, the stroller cannot be collapsed whereby thesafety lock 100 can reach the object of complete protection. - On the contrary, when the stroller is operated from the state of being collapsed to the state of being stretched, the
projection 114 slides from the end of theinclined section 110 and along the longitudinal direction of theslot 106. When theprojection 114 reaches the critical point, e.g. the crossing of theangle section 112 and the arc of theslot 106, theprojection 114 is exerted a restoration force resulting from thesleeve member 104 and then slides into the end of theangle section 112 to finish the locking actions. - This invention has been disclosed in terms of specific embodiments. It will be apparent that many modifications can be made to the disclosed structures without departing from the invention. Therefore, it is the intent of the appended claims to cover all such variations and modifications as come within the true sprit and scope of this invention.
Claims (4)
1. A safety lock for a stroller, comprising:
a lock body secured on a first member of the stroller, having a slot perpendicularly curved at a critical point;
a sleeve member movably bushed around a second member of the stroller, having a projection;
wherein the projection slides along the slot and when the projection is at one side of the critical point, the stroller is in a state of being stretched; on the other hand, when the projection is at the other side of the critical point, the stroller is in a state of being collapsed.
2. The safety lock for the stroller as claimed in claim 1 , wherein the sleeve member further comprises a lobe protruding out of a surface of the sleeve member.
3. The safety lock for the stroller as claimed in claim 1 , wherein the slot further comprises an angle section at one side of the critical point.
4. The safety lock for the stroller as claimed in claim 1 , wherein the slot further comprises an inclined section at the other side of the critical point.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN02254281.7 | 2002-09-10 | ||
CNU022542817U CN2623559Y (en) | 2002-09-10 | 2002-09-10 | Second safety lock |
Publications (2)
Publication Number | Publication Date |
---|---|
US20040046364A1 true US20040046364A1 (en) | 2004-03-11 |
US6908101B2 US6908101B2 (en) | 2005-06-21 |
Family
ID=27587816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/457,227 Expired - Lifetime US6908101B2 (en) | 2002-09-10 | 2003-06-09 | Safety lock for stroller |
Country Status (4)
Country | Link |
---|---|
US (1) | US6908101B2 (en) |
CN (1) | CN2623559Y (en) |
DE (1) | DE20312133U1 (en) |
GB (1) | GB2392886B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050209870A1 (en) * | 2004-03-22 | 2005-09-22 | Alden Ray M | Consumer products marketing process and method |
US20050225056A1 (en) * | 2004-04-13 | 2005-10-13 | Graco Children's Products Inc. | Foldable stroller |
US7073815B2 (en) * | 2002-04-24 | 2006-07-11 | Graco Children's Products Inc. | Stroller with drop-down basket |
US20060255565A1 (en) * | 2002-04-24 | 2006-11-16 | Graco Children's Products Inc. | Foldable stroller |
US7267359B1 (en) * | 2006-06-08 | 2007-09-11 | Link Treasure Limited | Collapsible stroller frame |
US7500692B2 (en) | 2003-03-26 | 2009-03-10 | Graco Children's Products Inc. | Basket assembly for a stroller |
WO2012027795A1 (en) * | 2010-09-01 | 2012-03-08 | Britax Childcare Pty Ltd | Folding stroller improvements |
CN108100011A (en) * | 2017-12-27 | 2018-06-01 | 好孩子儿童用品有限公司 | Multi-function baby stroller |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070257471A1 (en) * | 2006-05-08 | 2007-11-08 | Baby Planet Llc | Universal Infant Carrier Transport |
US7311323B1 (en) * | 2006-12-20 | 2007-12-25 | Red Lan | Stroller having a foldable handle frame capable of being automatically locked in a folded state |
US8905428B2 (en) | 2011-03-21 | 2014-12-09 | Graco Children's Products Inc. | Foldable stroller and fold joint for a foldable stroller |
US8961057B2 (en) | 2011-12-18 | 2015-02-24 | Graco Children's Products Inc. | Fold latch and fold joint for a stroller |
CN111907577B (en) | 2019-05-07 | 2023-03-10 | 明门瑞士股份有限公司 | Multi-seat infant stroller |
CN111907576B (en) | 2019-05-07 | 2022-11-04 | 明门瑞士股份有限公司 | Multi-seat infant stroller |
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US5427402A (en) * | 1994-09-26 | 1995-06-27 | Huang; Li-Chu C. | Foldable stroller |
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GB982619A (en) | 1963-01-31 | 1965-02-10 | Ft Products Ltd | Locking stays |
GB2178378A (en) | 1985-08-02 | 1987-02-11 | Quaker Oats Co | Folding handle member for a baby stroller |
-
2002
- 2002-09-10 CN CNU022542817U patent/CN2623559Y/en not_active Expired - Lifetime
-
2003
- 2003-06-09 US US10/457,227 patent/US6908101B2/en not_active Expired - Lifetime
- 2003-06-10 GB GB0313373A patent/GB2392886B/en not_active Expired - Lifetime
- 2003-08-01 DE DE20312133U patent/DE20312133U1/en not_active Expired - Lifetime
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080277905A1 (en) * | 2002-04-24 | 2008-11-13 | Graco Children's Products Inc. | Foldable Stroller |
US7073815B2 (en) * | 2002-04-24 | 2006-07-11 | Graco Children's Products Inc. | Stroller with drop-down basket |
US20060255565A1 (en) * | 2002-04-24 | 2006-11-16 | Graco Children's Products Inc. | Foldable stroller |
US7185909B2 (en) | 2002-04-24 | 2007-03-06 | Graco Children's Products Inc. | Stroller with drop-down basket |
US7500692B2 (en) | 2003-03-26 | 2009-03-10 | Graco Children's Products Inc. | Basket assembly for a stroller |
US20050209870A1 (en) * | 2004-03-22 | 2005-09-22 | Alden Ray M | Consumer products marketing process and method |
US7445229B2 (en) | 2004-04-13 | 2008-11-04 | Graco Children's Products Inc. | Stroller including movable basket assembly |
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US20050225056A1 (en) * | 2004-04-13 | 2005-10-13 | Graco Children's Products Inc. | Foldable stroller |
US7571925B2 (en) | 2004-04-13 | 2009-08-11 | Graco Children's Products Inc. | Stroller with child barrier and pivotable cup holder |
US7694995B2 (en) | 2004-04-13 | 2010-04-13 | Graco Children's Products Inc. | Foldable stroller |
US7267359B1 (en) * | 2006-06-08 | 2007-09-11 | Link Treasure Limited | Collapsible stroller frame |
WO2012027795A1 (en) * | 2010-09-01 | 2012-03-08 | Britax Childcare Pty Ltd | Folding stroller improvements |
CN103269936A (en) * | 2010-09-01 | 2013-08-28 | 宝得适儿童用品有限公司 | Folding stroller improvements |
EP2611670A4 (en) * | 2010-09-01 | 2018-01-17 | Britax Childcare Pty Ltd. | Folding stroller improvements |
CN108100011A (en) * | 2017-12-27 | 2018-06-01 | 好孩子儿童用品有限公司 | Multi-function baby stroller |
Also Published As
Publication number | Publication date |
---|---|
DE20312133U1 (en) | 2003-11-06 |
GB2392886B (en) | 2005-03-09 |
GB0313373D0 (en) | 2003-07-16 |
GB2392886A (en) | 2004-03-17 |
US6908101B2 (en) | 2005-06-21 |
CN2623559Y (en) | 2004-07-07 |
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